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  9. Q74

RRB NTPC 2021 · Question 74 of 131

Find the number whose four-fifth is more than its three-fourth by 4.

  1. A70
  2. B80Correct
  3. C100
  4. D90

Answer: B. 80

Explanation

Let the number =x. ATQ- x ×4/5 -4=x×3/4 4x/5 -4 =3x/4 (4x/5) -(3x/4) =4 16x-15x=80 X=80.

Source: RRB NTPC 2021 CBT 1 Previous Year Paper (3 Feb) — ixambee compilation with answer key · reliable-secondary

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